The WÜSTHOF Two-Stage Hand-Held Knife Sharpener is safe and easy to use. Place the sharpener on a flat work surface and hold the E-Z grip handle with one hand and the knife handle with the other. Insert the knife blade fully into the slot at a 90-degree angle to the sharpener and pull back a few times to sharpen. After setting the knife's edge with the carbide side, use the unit's ceramic side to nicely finish the edge. This sharpener is designed to sharpen a knife at 14 degrees per side. Key Features Two-stage sharpening system Carbide stage for setting the edge Ceramic stage for finishing E-Z grip handle for safe use Sharpens at 14 degrees per side Safe and easy to use Specifications Handle Material: Synthetic handle Cutlery Type: Knife sharpener Country of Origin: China Care Instructions Hand-held pull-through sharpeners will wear down with regular use. Steel dust may settle between either of the sharpening rods. Use a small soft brush to dry brush away any remnants.